Urban underground pipe network management method and system based on three-dimensional map and electronic device

The invention provides an urban underground pipe network management method and system based on a three-dimensional map and an electronic device. The method comprises the following steps: acquiring the position of the electronic device; displaying a three-dimensional map and a three-dimensional model of a plurality of pipelines included in the three-dimensional map throughout a main display area of the display, and displaying a symbolic representation of the electronic device at a position of the electronic device in the three-dimensional map; when a specific magnification input for magnifying the display of the three-dimensional map is received, causing the display to display the three-dimensional map of a specific area corresponding to the specific magnification input in the entire main display area, in which the displayed three-dimensional map of the specific area includes a symbolic representation of the electronic device; if a three-dimensional model of at least one of the plurality of pipelines is includ